cornfield meet
An accidental head-on collision or near head-on collision of two trains.
cornfield meet: head-on train collision, usually fatal
A cornfield meet is a head-on collision between two trains, typically occurring at speed on single-track or improperly aligned track. The term, used with gallows humor in railroad operations, comes from the rural setting where such disasters often happened in North America, trains meeting unexpectedly in open country rather than near populated rail yards. The impact at combined closing speeds of 100+ mph leaves little margin for survival or recovery; the euphemism masks the catastrophic nature of the event.
These collisions arise from dispatcher error, signal failure, crew misjudgment, or track switch misalignment. On single-track lines, trains must be carefully scheduled and separated by timetable or block system signals to prevent overlap. If a train departs ahead of schedule, or if a signal fails to display a restrictive aspect, a following train on the opposite track can meet oncoming traffic. Dispatcher errors in clearance or confusion over track occupancy are common root causes in historical cases.
The railroad industry uses several systems to prevent cornfield meets: centralized traffic control (CTC), which allows dispatchers to see track occupancy and control signals remotely; automatic block signals, which enforce spacing between trains; and more recently, positive train control (PTC), which uses GPS and wireless communication to enforce speed limits and prevent unauthorized movement into occupied track. Despite these safeguards, the consequences remain severe enough that the term persists as a stark reminder of operational discipline.
When a cornfield meet does occur, both trains suffer catastrophic damage. The locomotive structure, designed to protect crew in side-impact or rear-impact scenarios, offers minimal protection against frontal collision. Derailment, telescoping of cars (one crushing into another), and fire are nearly certain. The term gained particular currency in North American freight and passenger operations during the 20th century, appearing in accident investigations and railroad folklore as shorthand for a preventable disaster rooted in human or mechanical failure.